#define _CRT_SECURE_NO_WARNINGS 1

#include <stdio.h>

int main()
{
    int weight = 0, height = 0;
    while (scanf("%d %d", &weight, &height) != EOF)
    {
        float height2 = height / 100.0;
        float BMI = weight / (height2 * height2);
        if (BMI < 18.5)
        {
            printf("Underweight\n");
        }
        else if (BMI >= 18.5 && BMI <= 23.9)
        {
            printf("Normal\n");
        }
        else if (BMI > 23.9 && BMI <= 27.9)
        {
            printf("Overweight\n");
        }
        else {
            printf("Obese\n");
        }
    }
    return 0;
}